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3 years ago

HELPPPPPPPPPPPPPPPPPP!!!!!!!!!

Chemistry

1 answer:

Stella [2.4K]3 years ago

8 0

Answer:

Would not have Crankyosis, but Carrie's the allele for it.

Explanation:

If the disease is recessive, someone with the Aa genotype wouldn't the disease, but could potentially pass it down to offspring.

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Calculate the energy, in joules, to heat two cubes (silver and copper), each with a volume of 10.0cm, from 15 C to 25 C

Julli [10]

Answer:

For Silver , The heat absorbed = 246.75 J

For Copper , The heat is = 343.42 J

Explanation:

The change in temperature is calculated by:

$\Delta T=T_{2}-T_{1}$

T2 = 25 C

T1 = 15 C

$\Delta T=25-15$

$\Delta T=10^{0}C$

The energy in Joules can be calculated using :

$q=mc\Delta T$

here , m = mass of the substance

c = the heat capacity

q = heat absorbed / released

We need to calculate the mass , In order to determine the value of "q".

Calculation for Silver :

The mass is calculated from the density of the element.

density of Silver = 10.5 g/ml (look at the table of density)

Volume of Cube = 10 cm^3 (given)

1 cm^3 = 1 mL

10 cm^3 = 10 mL

The mass can be calculated using the formula:

$mass = density\times Volume$

$mass = 10.5\times 10$

$mass = 105grams$

Insert the value of m , c, T in the equation.

for Silver the value of "c"= 0.235 J/gC (Look at the table)

$q=mc\Delta T$

$q=105\times 0.235\times 10$

$q=246.75J$

Calculation for Copper:

Again first calculate the mass of Copper.

Density of Copper = 8.92 g/ml

Volume = 10 mL

$mass = density\times Volume$

$mass = 8.92\times 10$

$mass = 89.2grams$

Insert the value of m , c, T in the equation.

for Silver the value of "c"= 0.385 J/gC (Look at the table)

$q=mc\Delta T$

$q=89.2\times 0.385\times 10$

$q=343.42J$

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3 years ago

According to the map shown, why is geothermal renewable energy resource more often used west of the Mississippi River?

Oksana_A [137]

Answer:

<h2>C) Geothermal energy requires high subsurface temperatures that can be found west of the Mississippi River.</h2>

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3 years ago

What things can the atomic radiation help us with

Triss [41]

Chemotherapy is when radiation is used to kill cancer cells while sparing healthy tissue cells, also doctors sometimes inject patients with a nuclear tracer to show problematic areas that need to be checked out, and Nuclear power plants use nuclear energy to create a large amount of energy from just a small amount of Uranium. These are just some of the ways nuclear radiation is used to help us.

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3 years ago

which best describes ionization energy? a. energy needed to add an electron to a neutral atom in the gas phase b. energy needed

SVEN [57.7K]

c. energy needed to remove an electron from an atom or ion in the gas phase

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3 years ago

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How many atoms are there in 1.3 x 10^22 molecules of N(O)2

Alex73 [517]

1 molecule of NO2 included N atom and 2 oxygen atoms, so a total of 3 atoms per molecule.

1.3 x 10^22 times 3 = 3.9 x 10^22 atoms

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3 years ago

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